According to OrderOfSplendor is it the Congo Necklace tiara (that is the one in the middle of Tamara's pic, isnt't it?). The Princess wore it during the religious ceremony and some of the official photographs. For some other official wedding photographs, HRH wore the Belgian Tiara...
In this case, the bride wore another necklace - at least during the religious ceremony. Maybe she wore the Congo diadem/necklace as a necklace for the official portraits with the Belgian tiara. But then still the question remains: which necklace during the religious ceremony?
--Previous Message-- : If she is wearing the necklace, wich jewel is : she wearing as tiara? : : I have always ben thinking that she wore : that necklace as tiara. :